CN211395367U

CN211395367U - Bridge anticollision railing

Info

Publication number: CN211395367U
Application number: CN201922120115.5U
Authority: CN
Inventors: 罗建飞; 张亚军; 高源�; 郑伟; 温雅军; 蔡诚; 戴君
Original assignee: Changan University
Current assignee: Changan University
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-09-01
Anticipated expiration: 2029-11-29

Abstract

The utility model provides a bridge anti-collision railing, which comprises a stand column, a steel wire mesh, an elastic material, a steel strand anchoring device and a mandril; the plurality of stand columns are sequentially arranged on one side of the bridge along the longitudinal bridge direction, the bottoms of the stand columns are fixed on a bridge deck pavement layer, and the tops of the stand columns are sequentially connected through ejector rods; the part of the upright post above the bridge deck pavement layer is arc-shaped and is bent towards the inner side of the bridge; the steel wire mesh is divided into an inner steel wire mesh and an outer steel wire mesh, the bottom end of the inner steel wire mesh is fixed to the bottom end of each upright post, and the top end of the inner steel wire mesh is fixed to the top end of each upright post; the outer steel wire mesh is fixed on the inner side surface of each upright post from the bottom end to the top end, and the elastic material is filled in the accommodating space between the inner steel wire mesh and the outer steel wire mesh; the steel strand is connected with each upright in sequence, and two ends of the steel strand are fixed on the steel strand anchoring device. The utility model discloses collision force of vehicle is eliminated through multiple buffering to bridge anticollision railing, and the anticollision is effectual.

Description

Bridge anticollision railing

Technical Field

The utility model belongs to the technical field of the anticollision barrier, concretely relates to bridge anticollision railing.

Background

The bridge is generally built in a valley crossing section, so the outside of the bridge guardrail is generally a river or a canyon. Vehicles on roads and bridges are gradually increased to bring huge hidden dangers to road traffic safety, once the vehicles are out of control and collide with a bridge guardrail, immeasurable damage is probably caused to the whole structure of the bridge. The existing bridge anti-collision railing is usually a concrete railing, and when a vehicle is unstable and collides with the guardrail, the vehicle out of control is completely stopped by the rigidity of the concrete railing, so that the safety of people on the vehicle is extremely unfavorable, and the damage to a bridge structure is easily caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the not enough among the above prior art, provide a bridge anticollision railing, can effectively eliminate the collision force of vehicle, play good crashproof effect.

The utility model discloses a realize through following technical scheme:

a bridge anti-collision railing comprises upright posts, a steel wire mesh, an elastic material, steel strands, a steel strand anchoring device and ejector rods;

the plurality of stand columns are sequentially arranged on one side of the bridge along the longitudinal bridge direction, the bottoms of the stand columns are fixed on the bridge, and the tops of the stand columns are sequentially connected through ejector rods; the part of the upright column above the bridge is arc-shaped and is bent towards the inner side of the bridge;

the steel wire mesh is divided into an inner steel wire mesh and an outer steel wire mesh, the bottom end of the inner steel wire mesh is fixed to the bottom end of each upright post, and the top end of the inner steel wire mesh is fixed to the top end of each upright post; the outer steel wire meshes are fixed on the inner side surfaces of the stand columns from the bottom ends to the top ends, an accommodating space is formed between the inner steel wire meshes and the outer steel wire meshes, and the elastic material is filled in the accommodating space between the inner steel wire meshes and the outer steel wire meshes;

the steel strand wires are arranged in a plurality of numbers, each steel strand wire is sequentially connected with each upright post, and two ends of each steel strand wire are fixed on the steel strand wire anchoring devices.

Preferably, the concrete block also comprises a rear stay bar and a concrete block;

the concrete dog sets up on the bridge deck pavement layer, and is located the stand outside, back vaulting pole one end is connected in the stand, and the other end is connected in the pre-buried connecting piece of concrete dog of pre-buried in the concrete dog.

Further, the device also comprises a signal transmitting device and a pressure sensor; the pressure sensor is used for collecting pressure transmitted by the concrete block embedded connecting piece and transmitting collected pressure signals to the signal transmitting device, and the signal transmitting device transmits early warning signals to the alarm according to the received pressure signals.

Further, the pressure sensor is arranged below the concrete stop block embedded connecting piece.

Furthermore, the solar energy pressure sensor also comprises a solar charging panel which is used for providing power for the pressure sensor and the signal transmitting device.

Further, the signal transmitting device is controlled by an STM32F429 single chip microcomputer.

Furthermore, the signal transmitting device is arranged at a bridge span middle position.

Preferably, the resilient material is rubber or plastic.

Preferably, the bottoms of the stand columns are bolted to the bridge deck pavement layer through stand column embedded bolts embedded in the bridge deck pavement, and cast-in-place concrete is covered above the stand column embedded bolts.

Preferably, a plurality of reserved openings are arranged on the stand column from bottom to top at intervals, the number of the steel strands is consistent with that of the reserved openings on the single stand column, the steel strands and the stand column correspond to each other one by one, and each steel strand sequentially penetrates through the corresponding reserved openings of the stand columns and is anchored on the steel strand anchoring device through a steel strand anchorage device.

Compared with the prior art, the utility model discloses following profitable technological effect has:

bridge anticollision railing have certain flexibility, when the vehicle loses control, at first the wire net can consume part vehicle striking kinetic energy, then elastic material absorbs partial energy again, then most impact is consumed again by the plastic deformation of stand and steel strand wires again, and the stand has to the inboard recurvation of bridge, can prevent effectively that the vehicle from rushing out the bridge. The collision force of vehicle is eliminated in multiple buffering, and the anticollision is effectual, has avoided producing great impact to the personnel on the vehicle, has also avoided the damage to bridge structures simultaneously. The utility model discloses simple structure, most are through prefabricated installation, construction convenience.

Further, can also play certain support for the stand under the synergism of back vaulting pole and concrete dog, avoid the stand to produce too big deformation, reduce the damage of striking to the bridge.

Furthermore, once an accident happens at night, operation and maintenance management departments can hardly know where the accident happens in the first time, and related rescue measures cannot be carried out, so that the accident consequence is further worsened. The utility model discloses a set up pressure sensor and signal emission device, pressure sensor receives the pressure that the pre-buried connecting piece of concrete dog transmitted to convey this signal to signal emission device, signal emission device sends the early warning signal of different grades according to the size of the pressure that pressure sensor receives, takes place the dangerous situation and can report to the police the very first time, and traffic operation management center just can in time take relevant rescue measures in order to alleviate accident hazard.

Drawings

FIG. 1 is a cross-sectional view of the structure of the present invention;

FIG. 2 is a front view of the structure of the present invention;

FIG. 3 is a schematic view of the steel strand anchoring device of the present invention;

fig. 4 is a schematic view of the early warning device of the present invention;

the meaning of the various reference numbers in the drawings: the method comprises the following steps of 1-upright posts, 2-steel wire mesh bolts, 3-pins, 4-concrete stop block embedded connecting pieces, 5-early warning devices, 6-bridge deck pavement layers, 7-rear support rods, 8-concrete stop blocks, 9-steel strands, 10-upright post embedded bolts, 11-cast-in-place concrete, 12-elastic materials, 13-steel wire meshes, 14-ejector rods, 15-signal transmitting devices, 16-solar charging panels, 17-pressure sensors, 18-steel strand anchors and 19-steel strand anchoring devices.

Detailed Description

In order to make the technical means, the purpose and the effect of the present invention easy to understand, the following description is made in conjunction with the drawings to clearly and completely describe the technical solution in the embodiments of the present invention.

A bridge anti-collision railing with early warning comprises an anti-collision device and an early warning device 5.

As shown in fig. 1, 2, 3 and 4, the anti-collision device includes a pillar 1, a steel wire mesh 13, an elastic material 12, a steel strand 9, a rear stay bar 7, a concrete block 8, a top bar 14, a steel strand anchor 18 and a steel strand anchoring device 19. The multiple upright columns 1 are sequentially arranged along the longitudinal bridge direction, the bottoms of the upright columns 1 are bolted to the bridge deck pavement layer 6 on the upstream and downstream of the bridge through upright column embedded bolts 10 embedded in the bridge deck pavement, cast-in-place concrete 11 is covered above the upright column embedded bolts 10, and the ejector rods 14 are connected with the tops of the upright columns 1 through welding; the part of the upright post 1 above the bridge deck pavement layer 6 is arc-shaped and is bent towards the inner side of the bridge.

As shown in fig. 1 and 2, the steel wire mesh 13 is divided into an inner steel wire mesh and an outer steel wire mesh, the bottom end of the inner steel wire mesh is bolted to the bottom ends of the columns 1 through steel wire mesh bolts 2, and the top end of the inner steel wire mesh is bolted to the top ends of the columns 1 through steel wire mesh bolts 2; outside wire net from bottom to top through a plurality of wire net bolts 2 bolt joints on the medial surface of each stand 1 to form accommodation space between inboard wire net and the outside wire net, elastic material 12 fills in the accommodation space between inboard wire net and the outside wire net. The elastic material 12 may be rubber or plastic.

As shown in fig. 2 and 3, the plurality of steel strands 9 are provided, a plurality of reserved openings are arranged on the upright post 1 at intervals from bottom to top, the number of the steel strands 9 is the same as that of the reserved openings on a single upright post 1, the steel strands and the reserved openings are in one-to-one correspondence, and each steel strand 9 sequentially penetrates through the corresponding reserved opening of each upright post 1 and is anchored on a steel strand anchoring device 19 of the abutment at two ends through a steel strand anchorage 18. The steel strand anchoring device is pre-embedded into bridge abutments at two ends of the bridge.

The concrete stop block 8 is poured on the bridge deck pavement layer 6 and is positioned outside the upright post 1. And one end of the rear support rod 7 is connected to the upright post 1 through a pin 3, the other end of the rear support rod is connected to the concrete stop block embedded connecting piece 4 through a pin 3, and the concrete stop block embedded connecting piece 4 is embedded into the concrete stop block 8.

As shown in fig. 4, the early warning device 5 includes a signal transmitting device 15, a solar charging panel 16 and a pressure sensor 17, the pressure sensor 17 is used for acquiring pressure transmitted by the concrete block pre-embedded connecting member 4, and transmitting the acquired pressure signal to the signal transmitting device 15, and the signal transmitting device 15 transmits an early warning signal to the alarm according to the received pressure signal. The signal transmitting device 15 is controlled by an STM32F429 single-chip microcomputer and is arranged at the midspan position of the bridge, and the solar charging panel 16 is arranged at the safe and sunny position, namely the position where the outer side of the bridge faces the sun, and is used for supplying power to the pressure sensor 17 and the signal transmitting device 15. The pressure sensor 17 is arranged below the concrete stop block embedded connecting piece 4. The alarm can be arranged in a traffic operation management center.

The utility model discloses the device is when concrete implementation: the upright posts 1 are bolted through the upright post embedded bolts 10, and are covered with cast-in-place concrete 11 with certain thickness, so that the connection is firm, and the upright posts cannot be knocked down easily. When the vehicle loses control, at first wire net 13 can consume part vehicle striking kinetic energy, then elastic material 12 reabsorbs partial energy, then again by the plastic deformation of stand 1 and steel strand wires 9 consume most impact again, and finally, can also play certain support for the stand under the synergism of back vaulting pole 7 and concrete dog 8, control stand 1 and produce too big deformation. And the upright post 1 is reversely bent towards the inner side of the highway, so that the vehicle can be effectively prevented from rushing out of the bridge. Meanwhile, the pressure sensor 17 receives the pressure transmitted by the concrete block embedded connecting piece 4, the signal is transmitted to the signal transmitting device 15, and the signal transmitting device 15 transmits early warning signals of different levels according to the pressure applied to the pressure sensor 17. The traffic operation management center can take related rescue measures in time to reduce accident hazards.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, all of which are intended to be covered by the appended claims. The scope of protection claimed by the present invention is defined by the claims appended hereto.

Claims

1. A bridge anti-collision railing is characterized by comprising upright posts (1), a steel wire mesh (13), an elastic material (12), steel strands (9), a steel strand anchoring device (19) and ejector rods (14);

a plurality of upright posts (1) are sequentially arranged on one side of the bridge along the longitudinal bridge direction, the bottoms of the upright posts (1) are fixed on the bridge, and the tops of the upright posts (1) are sequentially connected through ejector rods (14); the part of the upright post (1) above the bridge is arc-shaped and is bent towards the inner side of the bridge;

the steel wire mesh (13) is divided into an inner steel wire mesh and an outer steel wire mesh, the bottom end of the inner steel wire mesh is fixed to the bottom end of each upright post (1), and the top end of the inner steel wire mesh is fixed to the top end of each upright post (1); the outer steel wire meshes are fixed on the inner side surfaces of the stand columns (1) from the bottom ends to the top ends, an accommodating space is formed between the inner steel wire meshes and the outer steel wire meshes, and the elastic material (12) is filled in the accommodating space between the inner steel wire meshes and the outer steel wire meshes;

the steel strand wires (9) are arranged in a plurality of numbers, each steel strand wire (9) is sequentially connected with each upright post (1), and the two ends of each steel strand wire (9) are fixed on the steel strand wire anchoring devices (19).

2. The bridge collision rail of claim 1, further comprising a rear stay (7) and a concrete stop (8);

concrete dog (8) set up on bridge deck pavement layer (6), and are located the stand (1) outside, back vaulting pole (7) one end is connected in stand (1), and the other end is connected in pre-buried concrete dog pre-buried connecting piece (4) in concrete dog (8).

3. The bridge collision rail of claim 2, further comprising a signal emitting device (15) and a pressure sensor (17); the pressure sensor (17) is used for collecting the pressure transmitted by the concrete stop block embedded connecting piece (4), the collected pressure signals are transmitted to the signal transmitting device (15), and the signal transmitting device (15) transmits early warning signals to the alarm according to the received pressure signals.

4. The bridge anti-collision rail according to claim 3, wherein the pressure sensor (17) is arranged below the concrete stop block embedded connector (4).

5. The bridge anti-collision rail according to claim 3, characterized by further comprising a solar charging panel (16), wherein the solar charging panel (16) is used for supplying power to the pressure sensor (17) and the signal transmitting device (15).

6. The bridge collision rail of claim 3, characterized in that the signal emitting device (15) is controlled by a STM32F429 single chip microcomputer.

7. A bridge collision rail according to claim 3, characterized in that the signal emitting device (15) is arranged at a bridge span position.

8. The bridge collision rail of claim 1, wherein the resilient material (12) is rubber or plastic.

9. The bridge anti-collision rail according to claim 1, characterized in that the bottom of the upright (1) is bolted to the deck pavement layer (6) by means of pre-embedded upright pre-embedded bolts (10) and the concrete (11) is cast in place above the pre-embedded upright bolts (10).

10. The bridge anti-collision railing of claim 1, characterized in that a plurality of reserved openings are arranged on the upright posts (1) at intervals from bottom to top, the number of the steel strands (9) is the same as that of the reserved openings on a single upright post (1), the steel strands are in one-to-one correspondence with each other, and each steel strand (9) passes through the corresponding reserved opening of each upright post (1) in sequence and is anchored on the steel strand anchoring device (19) through the steel strand anchorage device (18).